.#{$prefix}-p-course-lesson-intro {
  display: flex;
  height: 100%;
  padding: 16px 24px;
  .intro-extra {
    width: 284px;
    display: flex;
    flex-direction: column;
    .intro-keys {
      padding: 16px 24px;
      border-radius: 8px;
      border: 1px solid #EBEDEF;
    }
    .extra-title {
      line-height: 24px;
      font-size: 16px;
      color: #333;
      font-weight: bold;
    }
    .extra-hint{
      line-height: 24px;
      font-size: 14px;
      color: #999;
      text-align: center;
      margin-top: 16px;
    }
    .extra-inner {
      margin-top: 10px;
      margin-left: -6px;
      .el-tag {
        height: 24px;
        margin-left: 6px;
        margin-top: 6px;
        padding: 0 4px;
        line-height: 24px;
        border-width: 0;
        background-color: #E6F3FF;
        color: $color-primary;
      }
    }
    .extra-files{
      width: 100%;
      height: calc(100% - 20px);
      overflow-y: scroll;
      margin: 10px 0;
      // 隐藏滚动条
      &::-webkit-scrollbar {
        display: none;
      }
      .extra-item:hover{
        background: #F6F8FB;
      }
      .extra-item{
        display: flex;
        height: 62px;
        box-sizing: border-box;
        padding: 8px 16px 8px 12px;
        border-radius: 4px;
        // 鼠标手
        cursor: pointer;
        .extra-item-img{
          width: 24px;
          height: 24px;
          margin-right: 8px;
        }
        .extra-item-info{
          flex: 1;
          .extra-item-title{
            width: 176px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
            color: #333333;
            font-size: 14px;
            line-height: 22px;
          }
          .extra-item-content{
            color: #999999;
            font-size: 12px;
            line-height: 20px;
          }
        }
      }
    }
  }
  .sales-language {
    flex: 1;
    margin-left: 16px;
    padding: 16px 0 16px 0;
    line-height: 22px;
    font-size: 14px;
    border: 1px solid #EBEDEF;
    border-radius: 8px;
    .sales-inner{
      width: 100%;
      height: 100%;
      padding: 0 24px;
      overflow-y: auto;
      // 隐藏滚动条
      // &::-webkit-scrollbar {
      //   display: none;
      // }
    }
    .language-title {
      font-weight: bold;
      color: #333;
      font-size: 16px;
      line-height: 22px;
    }
    .language-content {
      margin-top: 8px;
      color: #666;
      font-size: 16px;
      line-height: 22px;
    }
    .sales-it { 
      &.sales-it {
        margin-top: 16px;
      }
    }
  }
}
